Accurate Image Expansion Method Using Range Points Based Ellipse Fitting for UWB Imaging Radar
Summary :
Ultra-wideband (UWB) pulse radars have a definite advantage in high-range resolution imaging, and are suitable for short-range measurements, particularly at disaster sites or security scenes where optical sensors are rarely suitable because of dust or strong backlighting. Although we have already proposed an accurate imaging algorithm called Range Points Migration (RPM), its reconstructible area is too small to identify the shape of an object if it is far from the radar and the size of the aperture is inadequate. To resolve this problem, this paper proposes a novel image expansion method based on ellipse extrapolation; it enhances extrapolation accuracy by deriving direct estimates of the observed range points distributed in the data space. Numerical validation shows that the proposed method accurately extrapolates part of the target boundary, even if an extremely small region of the target boundary is obtained by RPM.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E95-B No.7 pp.2424-2432
- Publication Date
- 2012/07/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E95.B.2424
- Type of Manuscript
- PAPER
- Category
- Sensing
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Yoriaki ABE, Shouhei KIDERA, Tetsuo KIRIMOTO, "Accurate Image Expansion Method Using Range Points Based Ellipse Fitting for UWB Imaging Radar" in IEICE TRANSACTIONS on Communications,
vol. E95-B, no. 7, pp. 2424-2432, July 2012, doi: 10.1587/transcom.E95.B.2424.
Abstract: Ultra-wideband (UWB) pulse radars have a definite advantage in high-range resolution imaging, and are suitable for short-range measurements, particularly at disaster sites or security scenes where optical sensors are rarely suitable because of dust or strong backlighting. Although we have already proposed an accurate imaging algorithm called Range Points Migration (RPM), its reconstructible area is too small to identify the shape of an object if it is far from the radar and the size of the aperture is inadequate. To resolve this problem, this paper proposes a novel image expansion method based on ellipse extrapolation; it enhances extrapolation accuracy by deriving direct estimates of the observed range points distributed in the data space. Numerical validation shows that the proposed method accurately extrapolates part of the target boundary, even if an extremely small region of the target boundary is obtained by RPM.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.2424/_p
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@ARTICLE{e95-b_7_2424,
author={Yoriaki ABE, Shouhei KIDERA, Tetsuo KIRIMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={Accurate Image Expansion Method Using Range Points Based Ellipse Fitting for UWB Imaging Radar},
year={2012},
volume={E95-B},
number={7},
pages={2424-2432},
abstract={Ultra-wideband (UWB) pulse radars have a definite advantage in high-range resolution imaging, and are suitable for short-range measurements, particularly at disaster sites or security scenes where optical sensors are rarely suitable because of dust or strong backlighting. Although we have already proposed an accurate imaging algorithm called Range Points Migration (RPM), its reconstructible area is too small to identify the shape of an object if it is far from the radar and the size of the aperture is inadequate. To resolve this problem, this paper proposes a novel image expansion method based on ellipse extrapolation; it enhances extrapolation accuracy by deriving direct estimates of the observed range points distributed in the data space. Numerical validation shows that the proposed method accurately extrapolates part of the target boundary, even if an extremely small region of the target boundary is obtained by RPM.},
keywords={},
doi={10.1587/transcom.E95.B.2424},
ISSN={1745-1345},
month={July},}
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TY - JOUR
TI - Accurate Image Expansion Method Using Range Points Based Ellipse Fitting for UWB Imaging Radar
T2 - IEICE TRANSACTIONS on Communications
SP - 2424
EP - 2432
AU - Yoriaki ABE
AU - Shouhei KIDERA
AU - Tetsuo KIRIMOTO
PY - 2012
DO - 10.1587/transcom.E95.B.2424
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2012
AB - Ultra-wideband (UWB) pulse radars have a definite advantage in high-range resolution imaging, and are suitable for short-range measurements, particularly at disaster sites or security scenes where optical sensors are rarely suitable because of dust or strong backlighting. Although we have already proposed an accurate imaging algorithm called Range Points Migration (RPM), its reconstructible area is too small to identify the shape of an object if it is far from the radar and the size of the aperture is inadequate. To resolve this problem, this paper proposes a novel image expansion method based on ellipse extrapolation; it enhances extrapolation accuracy by deriving direct estimates of the observed range points distributed in the data space. Numerical validation shows that the proposed method accurately extrapolates part of the target boundary, even if an extremely small region of the target boundary is obtained by RPM.
ER -
English
